#66BEDD#66BEDD

#66BEDD is a light, moderate cyan. Relative luminance 0.449; OKLCH L 75.8% C 0.095 H 223.3°. Best body text is #000000 at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#66BEDD
RGB	rgb(102, 190, 221)
HSL	hsl(196, 64%, 63%)
HSV	hsv(196, 54%, 87%)
CMYK	cmyk(53.8%, 14%, 0%, 13.3%)
CIE-LAB	lab(72.81, -17.90, -23.60)
CIE-LCH	lch(72.81, 29.62, 232.82°)
OKLab	oklab(75.84% -0.0695 -0.0655)
OKLCH	oklch(75.84% 0.095 223.3)
XYZ	xyz(36.9391, 44.8688, 75.1065)
Luminance	0.4487 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BEDD #DD8566

analogous

#66DDC0 #66BEDD #6682DD

triadic

#66BEDD #DD66BE #BEDD66

tetradic

#66BEDD #C066DD #DD8566 #82DD66

square

#66BEDD #C066DD #DD8566 #82DD66

split-complementary

#66BEDD #DD6682 #DDC066

monochromatic

#2483A4 #34A9D2 #66BEDD #98D3E8 #CAE9F3

Accessibility & contrast

On white

2.11

#66BEDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.97

#66BEDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BEDD

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BEDD	#FFFFFF	#000000	##000000
##66BEDD	1.00	2.11	9.97	9.97
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.97	21.00	1.00	1.00
##000000	9.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACBADF

Deuteranopia (green-blind)

#9BADDD

Tritanopia (blue-blind)

#00C8C8

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #66bedd;
/* rgb */ color: rgb(102, 190, 221);
/* oklch */ color: oklch(75.8% 0.095 223.3);

Tailwind

colors: {
  custom: {
    50: '#9ad1e7',
    500: '#66bedd',
    950: '#000000',
  },
}

SCSS

$custom: #66bedd;
$custom-light: #9ad1e7;
$custom-dark: #000000;

JSON

{
  "hex": "#66bedd",
  "rgb": {
    "r": 102,
    "g": 190,
    "b": 221
  },
  "hsl": {
    "h": 195.63,
    "s": 63.636,
    "l": 63.333
  },
  "oklch": {
    "l": 0.75836,
    "c": 0.09547,
    "h": 223.3
  },
  "luminance": 0.44872
}

Semantic roles & 50–950 ramp

primary

#66BEDD

secondary

#E5C5BA

accent

#481ACB

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0F1416

muted

#7E8284

Preview Lab

Preview with #66BEDD

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →